60030

Appears in sequences

• Coordination sequence for {E_6}* lattice.at n=5A008401
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 98.at n=4A031776
• Numbers k such that the sum of the digits of sigma(k)^k is divisible by k.at n=17A109659
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 6 and 9.at n=25A136894
• Numbers k such that k and k^2 use only the digits 0, 3, 4, 6 and 9.at n=30A136932
• Numbers k such that k and k^2 use only the digits 0, 3, 5, 6 and 9.at n=25A136939
• Numbers k such that k and k^2 use only the digits 0, 3, 6, 7 and 9.at n=24A136944
• Numbers k such that k and k^2 use only the digits 0, 3, 6, 8 and 9.at n=36A136945
• Numbers k such that k and k^2 use only the digits 0, 3, 6 and 9.at n=24A136946
• Numbers n such that usigma(n) = usigma(2*n+1) where usigma(n) = A034448(n).at n=7A286837
• Expansion of Product_{j>=1} 1/(1 - (-1 + Product_{k>=1} 1/(1 - x^k))^j).at n=10A307127
• Numbers k such that 403*2^k+1 is prime.at n=37A323101
• Those primitive elements of A337386 that have exactly one primitive nondeficient divisor (A006039).at n=22A341604